How do you play the Knock card game?

To play the Knock card game, each player is dealt a hand of cards. The goal is to form sets or runs of cards in your hand. On your turn, you can draw a card from the deck or discard pile, and then discard a card from your hand. The game ends when a player knocks on the table to signal they have formed their sets or runs. Players then reveal their hands and score points based on the cards they have collected. The player with the lowest score wins the game.